Nick Powell Powell was hyped when United signed him from Crewe but he didn't make the grade at Old Trafford and, after numerous loan spells, he finally left for good in 2016, joining Wigan Athletic.
Powell joined Stoke from Wigan last year and had become a regular in the team before their season ground to a halt. Victor Valdes Mourinho had a famous run-in with Valdes after his Inter Milan side knocked Barcelona out of the Champions League in 2010 so it was little surprise to see the Spanish goalkeeper leave United soon after Mourinho's appointment.
Valdes spent the 2016-17 season at Middlesbrough and retired at the end of that campaign. Will Keane Injuries denied Keane the opportunity to prove himself at United.